<template>
    <div class="rank" ref="rank"> 
        <scroll :data="toplist" class="toplist" ref="toplist">
            <ul>
                <li 
                class="item"
                v-for="item in toplist"
                @click="selectItem(item)"
                >
                    <div class="icon">
                        <img width="100" height="100" alt="" v-lazy="item.picUrl">
                    </div>
                    <ul class="songlist">
                        <li 
                        class="song" 
                        v-for="(song,index) in item.songList"
                        >
                            <span>{{index+1}}</span>
                            <span>{{song.songname}}-{{song.singername}}</span>
                        </li>
                    </ul>
                </li>
            </ul>
            <div class="loading-container" v-show="!toplist.length"></div>
        </scroll>
        <router-view></router-view>
    </div>
</template>

<script>
import {getTopList} from '../../api/rank.js'
import {ERR_OK} from '../../api/config.js'
import Scroll from '../../base/scroll/scroll'
import Loading from '../../base/loading/loading'
import {playlistMixin} from '../../common/js/mixin.js'
import {mapMutations} from 'vuex'

export default {
    mixins:[playlistMixin],
    data(){
        return {
            toplist:[]
        }
    },
    created(){
        this.getToplist_()
    },
    methods:{
        handlePlaylist(playlist){
            const bottom=playlist.length?'60px':''
            this.$refs.rank.style.bottom=bottom
            this.$refs.toplist.refresh()
        },
        getToplist_(){
            getTopList().then((res)=>{
                if(res.code===ERR_OK){
                    this.toplist=res.data.topList
                }
            })
        },
        selectItem(item){
            this.$router.push({
                path:`/rank/${item.id}`
            })
            this.setToplist(item)
        },
        ...mapMutations({
            setToplist:'SET_TOP_LIST'
        })
    },
    components:{
        Scroll,
        Loading
    }
}
</script>

<style lang='stylus' scoped>
  @import "../../common/stylus/variable"
  @import "../../common/stylus/mixin"

  .rank
    position: fixed
    width: 100%
    top: 88px
    bottom: 0
    .toplist
      height: 100%
      overflow: hidden
      .item
        display: flex
        margin: 0 20px
        padding-top: 20px
        height: 100px
        &:last-child
          padding-bottom: 20px
        .icon
          flex: 0 0 100px
          width: 100px
          height: 100px
        .songlist
          flex: 1
          display: flex
          flex-direction: column
          justify-content: center
          padding: 0 20px
          height: 100px
          overflow: hidden
          background: $color-highlight-background
          color: $color-text-d
          font-size: $font-size-small
          .song
            no-wrap()
            line-height: 26px
      .loading-container
        position: absolute
        width: 100%
        top: 50%
        transform: translateY(-50%)
</style>
